<!--The content below is only a placeholder and can be replaced.-->
<div>
  <h1>{{title}}</h1>

  <app-home></app-home>
  <app-qqq></app-qqq>
  <app-www></app-www>

  <a routerLink="/home">home</a>
  <a routerLink="/qqq">qqq</a>
  <a routerLink="/www">www</a>
  <router-outlet></router-outlet>

  <input type="button" value="跳转" (click)="qqq()">
</div>

